A 35kV 2500A side expansion bus coupler structure

Abstract

The utility model discloses a kind of 35kV2500A side expansion bus coupler structures, including side expansion bus coupler and side expansion bushing, side expansion bus coupler is also equipped with side expansion fitting in, side expansion fitting opposite side expansion bus coupler both ends protrude and insert side expansion bushing on conductive fitting, electric clamp ring is also equipped on the conductive fitting, side expansion fitting is equipped with annular groove opposite electric clamp ring, side expansion fitting is also equipped with fitting ring that relative conductive fitting elastically protrudes. Side expansion bus coupler of the utility model when using, through the side expansion fitting in side expansion bus coupler and insert side expansion bushing, through side expansion fitting electric contact conductive fitting realizes electric conduction, and further set up electric clamp ring and telescopic abutting structure, improve limited contact area and improve conductive performance, meet the use of high pressure environment.

Description

Technical Field

[0001] This utility model relates to the field of side-expanding bus coupler technology, specifically to a 35kV 2500A side-expanding bus coupler structure. Background Technology

[0002] In power systems, switchgear is composed of individual switchgear units assembled together and connected via side-expansion bus connectors (commonly known as side-expansion bus couplers in the industry) to achieve electrical connection between the cabinets and perform voltage inversion or transformation. Common bus couplers use a mechanical rigid connection method, which requires high positioning accuracy of the switchgear and is not very convenient to connect.

[0003] When connecting a side-expansion gas switchgear, a bus coupler is generally used to connect the side expansion bushing, which also serves as a conductor. The side expansion bus coupler is usually equipped with an insulating layer covering the conductive fittings. Conductivity is achieved by electrical connection with the conductive fittings inside the side expansion bushing. However, the existing conductive fittings generally use radial electrical connection, which has a limited contact area and the conductivity needs to be improved. Utility Model Content

[0004] In view of the prior art, the purpose of this utility model is to provide a 35kV 2500A side expansion bus coupler structure, which increases the limited contact area between conductive fittings, improves the conductivity of both, and meets the requirements of high-voltage environments.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a 35kV 2500A side-expansion bus coupler structure, including a side-expansion bus coupler and a side-expansion sleeve. The side-expansion bus coupler is further provided with a side-expansion fitting. The side-expansion fitting extends out from both ends of the side-expansion bus coupler and is inserted into a conductive fitting on the side-expansion sleeve. The conductive fitting is also provided with an electric clamping ring. The side-expansion fitting is provided with an annular groove opposite to the electric clamping ring. The side-expansion fitting is also provided with a fitting ring that extends elastically relative to the conductive fitting.

[0006] As a further provision of the above scheme, the side expansion sleeve is also provided with an equalizing ring and an electrical shielding ring. The equalizing ring is electrically connected to a conductive fitting, and the electrical shielding ring is annularly embedded between the mounting hole and the insertion cavity of the side expansion sleeve.

[0007] As a further feature of the above solution, the fitting ring is electrically connected to the insertion side expansion fitting and is provided with a spring for driving it to extend and retract outward to abut against the bottom surface of the conductive fitting.

[0008] As a further feature of the above solution, one end of the outer ring of the fitting ring is provided with a limiting protrusion, and the fitting is provided with a corresponding limiting slot.

[0009] As a further feature of the above solution, the conductive fitting is provided with busbar copper busbar connection bolt holes.

[0010] As a further feature of the above solution, the side expansion fitting is provided with a grounding loop.

[0011] As a further feature of the above scheme, the inner groove of the side expansion sleeve is provided with a flared beveled part, and the side expansion female connector is provided with a plug-in part opposite to the flared beveled part.

[0012] Beneficial effects: When in use, the side expansion bus coupler of this utility model connects to the side expansion sleeve through the side expansion hardware inside the side expansion bus coupler, and achieves electrical conduction through the electrical contact of the side expansion hardware with the conductive hardware. Furthermore, the electric clamp ring and telescopic abutment structure are set to increase the limited contact area and improve the conductivity. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the side expansion bus coupler structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the side expansion sleeve structure in this embodiment.

[0015] Figure 3 This is a schematic diagram of the side expansion bus connector structure in this embodiment.

[0016] Reference numerals in the attached drawings: 1. Side expansion bus coupler; 2. Side expansion sleeve; 21. Equalizing ring; 22. Electrical shielding ring; 23. Mounting hole; 24. Insertion cavity; 3. Side expansion fitting; 4. Conductive fitting; 5. Electrical clamping ring; 6. Ring groove; 7. Fitting ring; 71. Limiting protrusion ring; 72. Limiting slot; 8. Spring component; 9. Grounding loop wire. Detailed Implementation

[0017] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other.

[0018] like Figure 1-3 The diagram shows a 35kV 2500A side-expansion bus coupler structure, including a side-expansion bus coupler 1 and a side-expansion sleeve 2. The side-expansion bus coupler 1 is also provided with a side-expansion fitting 3. The side-expansion fitting 3 extends out from both ends of the side-expansion bus coupler 1 and is inserted into a conductive fitting 4 on the side-expansion sleeve 2. The conductive fitting 4 is also provided with an electrical clamping ring 5. The side-expansion fitting 3 is provided with an annular groove 6 opposite to the electrical clamping ring 5. The side-expansion fitting 3 is also provided with a fitting ring 7 that extends elastically relative to the conductive fitting 4.

[0019] As described above, in this embodiment, the side-expansion bus coupler has a side-expansion fitting 3 inside the insulating sleeve layer of the side-expansion bus coupler 1. Figure 1 The side expansion fitting 3 shown extends out from both sides of the insulating sleeve layer. During use, the side expansion fitting 3 extends out from the conductive fitting 4 inside the side expansion sleeve 2 and conducts electricity. Furthermore, the side expansion fitting 3 is provided with a fitting ring 7, which extends further out from the side expansion fitting 3, so that the end of the side expansion fitting 3 contacts the bottom end of the inner groove of the conductive fitting 4, thereby increasing the conductive area and improving the conductivity of the product.

[0020] As a further provision of the above scheme, the side expansion sleeve 2 is also provided with an equalizing ring 21 and an electrical shielding ring 22. The equalizing ring 21 is electrically connected to the conductive fitting 4, and the electrical shielding ring 22 is annularly embedded between the mounting hole 23 and the insertion cavity 24 of the side expansion sleeve 2.

[0021] As a further provision of the above solution, the fitting ring 7 is electrically connected to the side expansion fitting 3 and is provided with a spring 8 for driving it to extend and retract outward to abut against the bottom surface of the conductive fitting 4. The outer ring of one end of the fitting ring 7 that inserts into the side expansion fitting 3 is provided with a limiting protrusion 71, and the side expansion fitting 3 is provided with a corresponding limiting groove 72, such as... Figure 3 The side expansion fitting 3 shown has a slot fitting ring 7 that is pushed out by the spring member 8 and abuts against the bottom surface of the conductive fitting 4. When the side expansion sleeve 2 is not installed, the limiting protrusion ring 71 is inserted into the limiting slot 72, which provides a certain insertion holding force after the fitting ring 7 is inserted, preventing it from being pushed out by the spring member 8. Moreover, the installation and disassembly force of the limiting protrusion ring 71 and the limiting slot 72 do not need to be too large. Therefore, when the side expansion sleeve 2 is installed and removed, after the fitting ring 7 is pulled out, the operator can quickly press it back into the side expansion fitting.

[0022] As a further feature of the above scheme, the conductive fitting 4 is provided with busbar copper busbar connection bolt holes, the inner groove of the side expansion sleeve 2 is provided with a flared beveled part, the side expansion bus coupler 1 is provided with a plug-in part opposite to the flared beveled part, and the side expansion fitting 3 is provided with a grounding loop 9.

[0023] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of this utility model and its equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A 35kV 2500A side-expanded bus coupler structure, characterized in that: It includes a side expansion connector (1) and a side expansion sleeve (2). The side expansion connector (1) is also provided with a side expansion fitting (3). The side expansion fitting (3) extends out from both ends of the side expansion connector (1) and is inserted into the conductive fitting (4) on the side expansion sleeve (2). The conductive fitting (4) is also provided with an electric clamp (5). The side expansion fitting (3) is provided with an annular groove (6) opposite to the electric clamp (5). The side expansion fitting (3) is also provided with a fitting ring (7) that extends elastically relative to the conductive fitting (4).

2. The 35kV 2500A side-expanded bus coupler structure according to claim 1, characterized in that: The side expansion sleeve (2) is also provided with an equalizing ring (21) and an electric shielding ring (22). The equalizing ring (21) is electrically connected to the conductive fitting (4). The electric shielding ring (22) is annularly embedded between the mounting hole (23) and the insertion cavity (24) of the side expansion sleeve (2).

3. The 35kV 2500A side-expanded bus coupler structure according to claim 1, characterized in that: The side expansion fitting (3) is provided with a grounding loop (9).

4. The structure of a 35kV 2500A side-expanded bus coupler according to claim 1, characterized in that: The fitting ring (7) is electrically connected to the insertion side expansion fitting (3) and is provided with a spring (8) for driving it to extend and retract outward to abut against the bottom surface of the conductive fitting (4).

5. The 35kV 2500A side-expanding bus coupler structure according to claim 4, characterized in that: The fitting ring (7) is provided with a limiting protrusion (71) on one end of the side expansion fitting (3), and the side expansion fitting (3) is provided with a corresponding limiting slot (72).

6. The 35kV 2500A side-expanding bus coupler structure according to claim 1, characterized in that: The conductive fitting (4) is provided with busbar copper busbar connection bolt holes.

7. The structure of a 35kV 2500A side-expanded bus coupler according to claim 1, characterized in that: The inner groove of the side expansion sleeve (2) is provided with a flared beveled part, and the side expansion female connector (1) is provided with a plug-in part opposite to the flared beveled part.

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